Home / 28,085.92-42,114.77-9,359.40

Finding the Fourth Proportional to 28,085.92, 42,114.77 and 9,359.40

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Solution

The fourth proportional to 28,085.92, 42,114.77 and 9,359.40 is: 14,034.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085.92 : 42,114.77 = 9,359.40 : x
  2. Step 2: Convert to fraction form
    28,085.92/42,114.77 = 9,359.40/x
  3. Step 3: Cross multiply
    28,085.92x = 42,114.77 × 9,359.40
  4. Step 4: Simplify right side
    28,085.92x = 394,168,978.34
  5. Step 5: Solve for x
    x = 394,168,978.34/28,085.92
  6. Step 6: Final answer
    x = 14,034.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.